Malicious PDF — malware analysis report

Static analysis result for SHA-256 580f10c09ecf8cf7…

MALICIOUS

PDF

96.4 KB Created: 2021-06-29 00:08:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ceb5321d5f465006cdfd3290f3f65a09 SHA-1: 3262019a53ed44323af4f56c7f2870141182f1cf SHA-256: 580f10c09ecf8cf7a92a109564eaed52785b5ef1a059fe4ace89edbf009ae41b
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of an advance-fee scam, using lures related to lotteries, prizes, or parcel deliveries to trick users. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress sites or disposable domains, suggesting an attempt to redirect users to malicious content or downloads. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://nomylo.ru/uplcv?utm_term=becoming+like+jesus+by+gbile+akanni+pdf+download
    • https://veterinarycarefoundation.org/userfiles/file/88253472825.pdf
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f416cec7f4789c7f78237bcd74ebf65d/56248240832.pdf
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160bee8bcb1462---49742532197.pdf
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/3757ff244f11edfc1d069ac6a8fe81e1/44788239484.pdf
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4e7187f95---jojipasa.pdf
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/ali4t38c89i27p9oto888ldnkh/58134913763.pdf
    • http://teaandtiarasottawa.com/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/5066908457.pdf
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16072b2d0aeb49---6574438496.pdf
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/e4fade1e246ce4acb9e369b22bb1b30d/61610941613.pdf
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8ab0c83a0---junokafusupimofibisutowo.pdf
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16074cbd438735---zizikuk.pdf
    • http://clubselectionvoyages.com/images/file/24788182957.pdf
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160801faab76a9---47967092581.pdf
    • http://anthonyvienna.com/sites/default/files/file/55534381833.pdf
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609415cfd4304---xotati.pdf
    • https://total-sport.pl/img/upload/files/nanukuvosaripiweme.pdf
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160acd152a246e---2820088699.pdf
    • http://accessiblevehicleservices.com/userfiles/file/78161192104.pdf
    • https://nothingbutsafetyglasses.com/userfiles/file/fudexegegoj.pdf
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cf051205a34---bukodefurudofujo.pdf
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/tbr6g8q1ssct4oosjn0041dcv5/46211922146.pdf
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/f6cjgkgop6g43sp3dufod0jf1m/67703272412.pdf
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909ea3a6ef0---lewusufixofulajon.pdf
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb099d0234---fipuwof.pdf
    • http://camionespanamericana.com/userfiles/file/zoxobujotogewaxexe.pdf
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/55fde74d59ee7d5874feb49f0f2b2e30/2960454587.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001128a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1128A 16792 bytes
font_01_sfnt_off00012a9c.bin
9d22759c618a8fa207f97cc3da416f4670b23ceba3342e61d3907fc9d616b90b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A9C 17756 bytes
font_02_sfnt_off0001592f.bin
f907f58eaadf73add452c8bfe4a1b95fc33254baf5a92df10d8566e947b1b761		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1592F 11480 bytes

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